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New Member

Half Duplex/100M problem on 2960 switch with GLC-GE-100FX

We have a 2960-24TC switch with GLC-GE-100FX SFP interface converter. We connected the switch to another switch through fiber, one end was GLC-GE-100FX and the other end was a 100/FULL ATI media converter. Both switches could talk to each other. The problem was the GLC-GE-100FX interface running at 100M/half duplex status and we couldn't change the port configuration. Is there a way to fix this problem? Your help would be much appreciated.

2 REPLIES
Purple

Re: Half Duplex/100M problem on 2960 switch with GLC-GE-100FX

I have never seen where you could not change the speed and duplex if the interface allows it . How do you know it was running half ?

New Member

Re: Half Duplex/100M problem on 2960 switch with GLC-GE-100FX

Using show interface command. It shows half duplex. It's a new design on Cisco 2960-24TC switches, the Giga uplink ports are dual purposed. When I plugged GLC-GE-100FX SFP interface converter and connected it to a media converter, it showed half duplex. There's no way I could change the speed and duplex under that configuration.

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